Update 1-who-uses-a11yjson.md

Fixed wrong link to brokenlifts

docs/1-who-uses-a11yjson.md

@@ -14,7 +14,7 @@ The following organizations / products use A11yJSON.
 - [WheelPilot](https://www.rehacare.com/en/Archive/Topics_of_the_Month/Topics_of_the_Month_2019/July_2019_Self-determined_mobility_on_all_roads/Daimler’s_WheelPilot_app_finds_accessible_destinations),
  a pilot to explore accessibility in car navigation, by Daimler AG.
 - [Gelbe Seiten](https://www.gelbeseiten.de), Germany's Yellow Pages.
-- [brokenlifts.org](https://www.brokenlifts.de), to display alerts about broken lifts in German public
+- [brokenlifts.org](https://www.brokenlifts.org), to display alerts about broken lifts in German public
  transit networks.
 
-[Contact us](mailto:developers@sozialhelden.de) if you want your organization to show up on this list.
+[Contact us](mailto:developers@sozialhelden.de) if you want your organization to show up on this list.